What is AGILE? What is SCRUM? Agile FAQ's' cPrime.
It is a lightweight process framework for agile development, and the most widely-used one. A process framework is a particular set of practices that must be followed in order for a process to be consistent with the framework. For example, the Scrum process framework requires the use of development cycles called Sprints, the XP framework requires pair programming, and so forth.

What is Scrum? Scrum.orgLogo_withoutTag.
Some of the mentioned terms are not mandatory in Scrum, but have been added because they are commonly used in Scrum. To learn more about the Scrum framework, to identify which of these terms are required elements of Scrum and to understand how the mentioned elements are connected, we highly recommend that you reference The Scrum Guide. To learn more about terms specific to software development teams using Scrum and agile software development techniques, reference the Professional Scrum Developer glossary.

Scrum Alliance Learn About Scrum.
Scrum is the leading agile development methodology, used by Fortune 500 companies around the world. The Scrum Alliance exists to transform the way we tackle complex projects, bringing the Scrum framework and agile principles beyond software development to the broader world of work.